?精密声级计
... solid jaw with movable lug 带活舌普通接杆 sound grader 精密声级计 sound reverberator 混响器 ...
便携式声级计
精密声级计
First-grader Aiden Licata, whose class was going to make the gingerbread house, thought it was the sound of hammers.
CNN: STORY HIGHLIGHTS
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。